Combining Left and Right channels to produce Mono has been a hoary old
problem since the beginning of Stereo. Just paralleling the outputs
causes electrical problems as Cowboy has identified, some or all of
which are frequency and phase dependent.
Running left and right into a mixer should work but that relies on the
integrity of the original stereo,and there are a number of classic
'channels out of phase' releases which once identified can be dealt
with. They didn't stop when CD's came along! If you are sourcing
material on mp3 from who knows where, you are relying on a transcription
process you have no control over.
I seem to remember some clever 3 resistor arrays that matched the output
impedance and fed a single channel. Bit of insertion loss but enough
isolation to avert the electrical problems.
Robert
On 04/02/14 10:14, Cowboy wrote:
On Monday 03 February 2014 04:01:05 pm Rick wrote:
Is it correct to say you're advising strictly on the traditional analog
physical output realm?
Yes.
If it's virtual, there's no danger of over current blowing up parts.
( although depending on how they combine the channels, there may
still be distortion, or there may not. )
I have to say, I'm intrigued by Jim's virtual approach using Jack!
I am too.
If you do a straight L+R and there are no phase problems in the
original material, it should be fine ! It should mimic what one ear would
hear.
It's when there are phase differences that real parts become unhappy.
If it's a straight L+R in the virtual world, there could still be phase
distortions, but it's an intriguing concept.
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